"with that of St. Giles, Edinburgh, and the Tolbooth, Glasgow, the only three surviving of those which we could at one time boast. The general style of the structure is very similar to that of St. Giles, but in this case there are only four arches thrown from the angles of the tower to the central lantern, while in the case of St. Giles there are eight, which produce a fuller and richer effect.... The part blown down (by a violent storm in 1633) was probably only the lantern on the top of the four arches, the details of this part having a decidedly Renaissance character, and being different from the other parts of the tower. Doubtless the arches themselves would suffer in the crash, and would require repairing and rebuilding in part, which was evidently done, as the date 1634 is carved on the soffit of the crossing. This difference of detail is interesting as showing how persistently these old designers wrought in the style of their time. Although it is evident that the present lantern is not quite the same as the original one, it must be admitted to be an extremely happy and picturesque composition."[237] The chapel suffered both externally and internally in the course of the centuries, but, thanks to the enlightened liberality of Aberdeen citizens and alumni, it has been recently restored under the direction of Dr. Rowand Anderson. In 1823 the choir end was fitted up for worship on the Sundays, and the nave was occupied by the library, which was not removed and located in a building of its own until 1873. The choir screen was then shifted westward from its original position, where its west front formerly bisected the chapel.